Corrugated pipe or culvert



Apnl 5, 1927. w. H. HALL CORRUGATED PIPE on CULVER'I Filed April 11. 1924 JINENTnR hllbblflM. H. HFILL.

Patented Apr. 5, 1927.

UNITED STATES WILLIAM HERBERT HALL, OF OSHAWA, ONTARIO. CANADA, ASSIGNOR TO THE PEDLAR PATENT OFFICE.

PEOPLE LIMITED, OF OSHAWA, CANADA, A CORPORATION.'

CORRUGATED PIPE OR GULVERT.

Application filed April 11, 1924. Serial No. 705,896.

This invention relates to improvements in corrugated pipes or culverts, and the objects of the invention are to facilitate the removal of ice and. snow from the interior of such pipes when used as culverts, and to prevent the formation of ice in the corrugation on the inside of the culvert.

And it consists essentially of a corrugated pipe or culvert having a smooth metallic lining preferably of lighter material and connected thereto, as shown and described in the accompanying specification and drawings.

In .the drawings:

Figure 1 is a longitudinal sectional elevation of an embodiment of the invention.

Figure 2 is a longitudinal sectional elevation taken at right angles to Figure 1.

Figure 3 is an end view partially in section.

In the drawings, like characters of reference indicate corresponding parts in all the figures.

Referring to the drawings:

A indicates the corrugated pipe or culvert proper constructed of suitable sheet metal in the usual form, having overlapping edges fastened by rivets 10. B indicates a smooth lining for the culvert or pipe, preferably made of lighter material than the body of the pipe and also formed with overlapping edges. The overlapping edges of the lining and of the culvert itself are preferably secured by the same rivets, as indicated in Figure 3, these rivets extending through the lapped joint of both the culvert A and the lining B.

The lining B at the start or finish of any length of pipe or culvert is turned over the edge of the culvert A to prevent the entrance of water or snow between the pipe A and the lining B. As shown, a flange 11 is formed on the lining B which is turned 0V6]? the edge of the culvert or pipe A, as shown in Figure 1, and it will be understood that a similar flange will be formed at the beginning or end of any length of pipe.

The lining B projects a distance beyond the pipe or corrugated section A to provide a lappage 12 which will project into the next adjacent section. The corrugated pipe or culvert A, such as described, is used very largely as a culvert beneath roads, and in the spring of the year the ditches on the sides of the road are liable to be full of material and may be held in position by the same rivets.

As many changes could be made in the above construction and many widely different embodiments of my invention within the scope of the claim, constructed without departing from the spirit or scope thereof, it is intended that all matter contained in the accompanying specification and drawings shall be interpreted as illustrative and not in a limiting sense.

hat I claim as my invention is:

A corrugated culvert section fori'ned from asingle sheet of metal and having the edges overlapped, a lining for the culvert formed with overlapping edges and securing means through the overlapped edges of the lining and the metal to form overlapped joint, the lining being folded over the culvert at one end to prevent leakage and formed with a. projection at the other end protruding beyond the culvert to provide a lappage for an adjacent section.

In witness whereof I have hereunto set my hand.

WILLIAM HERBERT HALL. 

